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Equity Compensation and Employee Benefit Plans (Equity Compensation Expense and Related Income Tax Benefit Recognized) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Stock Options |  |  |
Equity Compensation [Abstract] |  |  |
Pre-tax compensation expense | $ 0 | $ 6 | $ (25)
Tax benefit | 0 | 2 | (9)
Stock expense, net of tax | 0 | 4 | (16)
Restricted Stock |  |  |
Equity Compensation [Abstract] |  |  |
Pre-tax compensation expense | 4,143 | 3,244 | 2,337
Tax benefit | 1,056 | 1,265 | 886
Stock expense, net of tax | 3,087 | 1,979 | 1,451
Performance Shares |  |  |
Equity Compensation [Abstract] |  |  |
Pre-tax compensation expense | 3,152 | 1,459 | 167
Tax benefit | 804 | 569 | 63
Stock expense, net of tax | $ 2,348 | $ 890 | $ 104

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References No definition available. + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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